/Engine/Plugins/Online/OnlineFramework/Source/PlayTimeLimit/Public/PlayTimeLimitUser.h
Get the next time we are scheduled to send the user a notification This is for the periodic notification; if the reward rate changes we will immediately display a notification
the time (compared toFPlatformTime::Seconds()) for the next notification, or empty if this user should not receive periodic notifications
[TOptional](API\Runtime\Core\IO\TOptional)< double > GetNextNotificationTime() const